1. Dab tsi yog flocculants, coagulants thiab txias?
Cov neeg sawv cev no tuaj yeem faib ua cov ntu hauv qab no raws li cov kev siv sib txawv hauv qhov sludge xovxwm lim pom:
Flocculant: Qee zaum hu ua coagulant, nws tuaj yeem siv los ua kev sib cais ua kua tawb, siv rau hauv tank thawj zaug thiab kev kho mob ntawm tes lossis kev kho mob ntawm kev kho mob.
Kev pab sib thoob plaws: ib pab pawg flocc cov flocculants ua si lub luag haujlwm los txhim kho cov nyhuv sib xyaws.
Txias: Kuj hu ua Dewatering tus neeg sawv cev, nws yog siv rau cov mob uas seem uas yog sludge ua ntej dewatering, thiab nws cov ntau yam ntawm cov flocculants thiab coagulants.
2. Flocculant
Flocculants yog chav kawm cov tshuaj uas tuaj yeem txo lossis tshem tawm cov dej nag tsis ruaj khov thiab ua kom muaj kev cuam tshuam nrog cov dej nag thiab ua kom muaj kev cuam tshuam rau kev tshem tawm.
Raws li cov tshuaj lom neeg muaj pes tsawg leeg, cov flocculants tuaj yeem faib ua cov hnyuv flocculants thiab cov organic flocculants.
Inorganic flocculants
Cov tsoos inorganic flocculants yog cov ntsev coulle aluminium txhuas cov ntsev txhuas tsawg thiab cov ntsev hlau. Aluminium sals feem ntau yog suav txhuas sulfate (Al2) 3 ∙ 18hso4), sodium chloride (FECL3 ∙ 6HAH], ferrous sulfate ( Feso4 ∙ 6H20) thiab Ferric Sulfate (Fe2 (So4) 3 ∙ 2H20).
Feem ntau hais lus, inorganic flocculants muaj cov yam ntxwv ntawm kev yooj yim muaj cov khoom raw, yog li lawv tau siv dav hauv cov dej kho.
Inorganic polymer flocculant
Lub hydroxyl thiab oxygen-raws polymers ntawm al (III) thiab FE (III) yuav tau muab khaws cia rau qee qhov kev mob, thiab lawv qhov loj me me yuav nyob hauv cov nanometer ntau. Tshwm sim ntawm ntau npaum.
Muab piv rau cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv polymerization, cov tshuaj tiv thaiv ntawm txhuas polymer ntawm cov hlau ua kom nrawm nrawm thiab yooj yim loses ruaj khov thiab precipitates.
Qhov zoo ntawm Inorganic polymer Flocculants tau cuam tshuam nyob rau hauv qhov ntawd nws yog ntau dua li Aluminium chloride, thiab yog pheej yig dua organic polymer flocculants. Tam sim no polyaluminum chloride tau ua tiav hauv ntau cov txheej txheem kev kho dej, kev kho mob thiab kev kho mob hauv nroog, thiab tau maj mam dhau los ua ib qho kev kho mob loj. Txawm li cas los xij, hais txog morphology, degree ntawm polymerization thiab coj sib xyaw ua ke ntawm cov khoom siv roj ntsha uas yog nyob hauv ib txwm muaj roj ntsha
Polyaluminium chloride, PAC, MSDS Policloruro de Aluminium Tshuaj Dej Aluminium, xa cov tshuaj lom neeg Aln (Oh) McL3n-m. PAC yog cov hluav taws xob hluav taws xob ntau ntxiv uas tuaj yeem txo cov nqi colloidal ntawm cov av nplaum-zoo li impurities (ntau yam kev tsis zoo) hauv dej. Vim yog cov neeg txheeb ze loj molecular loj thiab muaj peev xwm tshaj tawm, cov flocculation tsim yog loj dua, thiab cov floursation thiab kev ua yeeb yam zoo dua li lwm tus flocculants.
Poly Aluminium chloride muaj qib siab ntawm polymerization, thiab nrawm nrawm tom qab ntxiv luv luv lub sijhawm floc tsim. Poly Aluminium Chloride Pac tsis tshua muaj kev cuam tshuam los ntawm dej kub, thiab nws ua haujlwm tau zoo thaum cov dej kub. Nws txo cov nqi ntawm cov dej tsawg dua, thiab cov phas muaj feem xyuam yog dav (tuaj yeem siv nyob rau hauv ntau ntawm PH = 5 ~ 9), yog li nws tsis tsim nyog ntxiv rau Alkaline Tus Neeg Sawv Cev. Qhov ntau npaum li cas ntawm PAC yog me, tus nqi ntawm cov av muaj me me, thiab nws kuj yog qhov yooj yim rau cov khoom siv thiab cov raj xa khoom. Yog li ntawd, PAC muaj ib qho kev nyiam hloov aluminium sulfate nyob rau hauv lub tshav dej kho, thiab nws qhov tsis zoo yog tias tus nqi siab dua li ntawm flocculants.
Tsis tas li ntawd, los ntawm qhov pom ntawm kev daws chemistry,PAC poly txhuas chloridePuas yog lub Kinetic Intermediate Khoom ntawm cov hydrolysis-polymerization-nag lossis daus Feem ntau, kua pac cov khoom yuav tsum tau siv nyob rau hauv ib lub sijhawm luv luv (cov khoom lag luam tau muaj kev ua tau ruaj khov). , Nws tuaj yeem khaws cia rau lub sijhawm ntev dua). Ntxiv qee cov ntsev inorganic (xws li CACL2, MNCL2, thiab appromolecules (etcrylamide, thiab lwm yam ntxiv rau kev muaj peev xwm loj.
Nyob rau hauv cov nqe lus ntawm cov txheej txheem ntau lawm, ib lossis ntau yam li SO42-, POR43-, thiab lwm yam kev faib tawm Morphiaological tuaj yeem hloov pauv mus rau qee yam ntawm polymerization, yog li txhim kho qhov ruaj khov thiab kev ua tau zoo ntawm PAC; Yog tias lwm cov khoom siv hluav taws xob, xws li FE3 +, tau qhia hauv cov txheej txheem tsim khoom lag luam ntawm PAC kom almolytically polymculant polyaluminum hlau tuaj yeem tau txais.
Organic Polymer Flocculant
Hluavtaws organic polymer flocculants feem ntau polypropylene feem ntau cov tshuaj polyethylene, xws li polyacrylamide thiab polyethylarine. Cov flocculants yog txhua yam dej-solombecules, txhua macromolecule muaj ntau cov chav uas muaj cov pab pawg uas muaj cov pab pawg, yog li lawv tseem hu ua polyelectrolytes. Cov uas muaj cov pab pawg tseem ceeb yog cationic polyelectrolytes, thiab cov uas muaj cov neeg tsis ncaj ncees, uas tsis muaj qhov tsis muaj txiaj ntsig los yog ua cov polyelectrolytes.
Tam sim no, feem ntau dav siv polymer flocculants yog anocculants yog anionic, thiab lawv tsuas tuaj yeem ua lub luag haujlwm ntawm kev pab lub cev tsis muaj txiaj ntsig ntawm cov dej. Feem ntau nws tsis tuaj yeem siv ib leeg, tab sis yog siv ua ke nrog aluminium salts thiab hlau ntsev. Cationic flocculants tuaj yeem ua lub luag haujlwm ntawm kev sib cais thiab flocculation nyob rau tib lub sijhawm thiab siv ib leeg, yog li lawv tau tsim sai.
Tam sim no, polyacrylamide nous tsis muaj ionic polymers yog siv ntau dua hauv kuv lub tebchaws, uas feem ntau siv hauv kev sib xyaw nrog cov hlau thiab aluminium ntsev. Cov hluav taws xob nruab nrab nyhuv ntawm cov hlau thiab aluminium ntsev ntawm cov txiaj ntsig colloidal thiab cov floice flocculance siv tau los tau txais kev kho mob txaus siab. Polyacrylamide muaj cov yam ntxwv ntawm tsawg npaum li cas noj, nrawm sib zog nrawm, thiab cov flocs loj thiab tawv heev hauv kev siv. 80% ntawm cov hluavtaws organic polymer flocculants tam sim no tsim nyob rau hauv kuv lub teb chaws yog cov khoom no.
Polyacrylamide Pam, polyelectrolyte siv, polyelecyrolyte cationic organic, cationic polyacer flocculant, polyelectrolyte, thiab qee zaum siv los ua kev sib koom ua ke. Cov khoom siv ntau lawm ntawm polyacrylamide yog polyacrylonitrile ch2 = CHCN. Nyob rau hauv qee qhov kev mob, acrylonitrile yog hydrolyzed los ua acrylamide, thiab acrylamide yog tom qab ntawd raug rau kev kawm polymerization kom tau polyacrylamide. Polyacrylamide yog dej-soluble cob, thiab cov khoom yog cov khoom lag luam granular thiab viscous aqueous daws nrog qee qhov kev xav tau.
Qhov tiag tiag daim ntawv ntawm polyacrylamide nyob rau hauv dej yog random coil. Vim hais tias cov kauj ruam random muaj qee pab pawg me me thiab qee cov pab pawg ntawm cov npoo av, nws tuaj yeem ua ib qho muaj peev xwm ua nkauj ua si, uas yog, nws muaj qee qhov me me. Qee tus muaj peev xwm flocculation.
Txawm li cas los xij, vim hais tias cov saw ntev ntawm polyacrylamide yog curled mus rau hauv ib npib, nws cov bridging ntau yog me me. Tom qab ob pawg pab pawg tau txuas nrog, nws yog sib npaug rau kev sib nrig sib tawm ntawm kev sib tham thiab poob ntawm ob qho chaw tshaj tawm. Ib qho ntxiv, qee cov pab pawg hauv pawg tau qhwv hauv nws tsis tuaj yeem tiv toj thiab Adsorb tus neeg uas tawg tsis tau muaj kev sib tw.
Nyob rau hauv thiaj li yuav cais cov pab pawg uas tau sib txuas dua thiab ua rau qee pab pawg rau sab nraud, thiab txawm sim ntxiv qee pab neeg nrog cov kab ke ntev, thaum txhim kho cov adsorption thiab Bridging muaj peev xwm thiab cov nyhuv ntawm hluav taws xob nruab nrab thiab compression ntawm lub roj hluav taws xob txheej. Nyob rau hauv txoj kev no, ib series ntawm polyacrylamide flocculants lossis coagulants nrog cov khoom sib txawv yog muab tau los ntawm PAM.
Hauv kev kho dej sib xyaw ntawm cov dej khib nyiab, qee zaum ib qho flocculant tsis tuaj yeem ua tiav qee tus neeg sawv cev zoo los txhim kho cov txiaj ntsig sib thooj. Tus neeg sawv cev ntawm tus neeg sawv cev no hu ua kev pabcuam sib koom ua ke. Feem ntau siv cov coagulants yog chlorine, kua txiv, ua kom cov pob txha cov kua nplaum thiab cov roj ntsha thiab ntau cov clays.
Qee tus coagulants lawv tus kheej tsis ua lub luag haujlwm hauv kev sib koom tes, lawv ua lub luag haujlwm ntawm kev pab ntawm cov nplaim hluav taws xob. Qee cov coagulants koom nrog kev tsim cov flocs, txhim kho cov qauv ntawm cov flocs, thiab tuaj yeem ua rau cov floccic uas tsim los ntawm inorganic flocculants rau ntxhib thiab kaw flocs.
4. Mob
Cov khoom siv kho kom zoo, tseem hu ua cov neeg sawv cev qhuav, tuaj yeem faib ua ob pawg: inorganic txias thiab cov organic txias. Inorganic cov khoom noj kom haum rau lub tshuab nqus tsev thiab phaj thiab thav duab cov khoom siv rau centrifugal thiab siv lim lim ntawm sludge.
5.Qhov kev sib raug zoo ntawmFlocculants, coagulants, thiab txias
Tus neeg sawv cev ntawm lub cev qhuav dej yog tus neeg sawv cev ntxiv ua ntej lub sludge yog lub cev qhuav dej, yog li lub ntsiab lus ntawm lub cev tsis muaj hnub nyoog thiab tus neeg sawv cev txias yog tib yam. Qhov ntau npaum li cas ntawm Dewatering tus neeg sawv cev lossis tus neeg sawv cev muaj feem ntau tau muab xam raws li feem pua ntawm qhov hnyav ntawm cov neeg tawv nqaij qhuav ntawm cov sludge.
Flocculants yog siv los tshem tawm cov khib nyiab tshem tawm hauv cov dej phwj tuaj thiab yog cov sawv cev tseem ceeb hauv kev kho cov dej. Qhov ntau npaum ntawm cov flocculant yog feem ntau qhia los ntawm tus nqi ntxiv rau hauv cov ntim ntim ntawm cov dej kom raug kho.
Qhov ntau npaum li cas ntawm cov neeg saib xyuas lub cev qhuav dej (tus neeg sawv cev) (tus neeg sawv cev), flocculant, thiab kev pabcuam sib xyaws tuaj yeem hu tau ntau npaum li cas. Tib tus neeg sawv cev tuaj yeem siv raws li flocculant nyob rau hauv kev kho mob ntawm dej phwj tuaj, thiab tuaj yeem siv ua cov khoom noj kom zoo lossis cov khoom pov tseg hauv kev kho mob ntawm sludge tshaj.
Coagulants yog hu ua coagulants thaum lawv tau siv raws li cov nplaim taws hauv kev kho cov dej. Tib qho kev co coag
Thaum siv aFlocculant, Vim tias cov nyiaj ntawm cov khib nyiab tshem tawm hauv dej yog txwv, txhawm rau kom ua tiav tag nrho cov kev sib cuag ntawm Flocculant thiab cov kev sib xyaw thiab cov tshuaj tiv thaiv cov chaw yuav tsum tau nruab nrog lub sijhawm txaus. Piv txwv li, sib xyaw yuav siv kaum ob npaug rau ob peb feeb, cov tshuaj tiv thaiv yuav tsum muaj 15 txog 30 feeb. Thaum sludge yog dewatered, nws feem ntau tsuas yog ob peb kaum ntawm vib nas this los ntawm kev nkag mus rau lub defatering tshuab, thiab tsuas yog lub sijhawm tiv thaiv, thiab muaj kev paub dhau los Kuj pom tias cov nyhuv muaj zog yuav nce ntxiv nrog cov nyob. tsawg dua sijhawm.
Cov cuab yeej khiav zoo, tsim nyog muag cov neeg coob, thiab cov muab kev pab cuam tom qab muag; Peb kuj yog ib tus txij nkawm loj dua thiab cov menyuam yaus, txhua tus neeg nyob nrog tus nqi Tuam Tshoj APAM anionic polyacrylamide PAM rau cov roj av roj av roj av,Yixing Cleateru Dej Tshuaj Co., Ltd.Cov. Tau ntsib cov chaw tsim khoom lag luam nrog ntau tshaj 100 tus neeg ua haujlwm. Yog li peb tuaj yeem lav cov hau txhuas luv luv thiab kev paub zoo.
Yuav ntau thiab khaws ntau 100% thawj lub Hoobkas Tuam Tshoj entionic polyacrymide, polyamer polyacrymide, polyamer, "Lub hauv paus ntsiab lus kawg siab kawg nkaus. Peb zoo siab txais tos cov phooj ywg los ntawm txhua qhov chaw ntawm lub neej mus xyuas thiab muab kev taw qhia, ua haujlwm ua ke thiab tsim lub neej yav tom ntej ci ntsa iab!
Execermpted los ntawm bjx.com
Lub Sijhawm Post: Jul-09-2022